| 2005 | DelStar Technologies opens DelStar Technologies (Suzhou) Co., Ltd. – China
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| 2004 | DelStar Technologies acquires Industrial Research Machined Products(IR) and CoreTec Plastics, adding manufacturing facilities in El Cajon, CA and Richland, PA |
| 2002 | CoreTec™ Plastics, Inc. backed by IR, is formed with new profile extrusion equipment in Richland, PA |
| 2001 | DelStar Technologies forms with merger of Naltex® and AET Specialty Nets and Nonwovens division, with corporate headquarters in Middletown, DE, manufacturing facilities located in Middletown, DE and Austin, TX, and sales offices in Bristol, England and Shanghai, China |
| 2000 | Nalle Plastics begins doing business as Naltex, its core netting technology |
| 1998 | AET Specialty Nets and Nonwovens Division invests in new DelPore® meltblown technology |
| 1990's | IR moved to present location in El Cajon, CA |
| 1990 | AET Specialty Nets and Nonwovens Division acquires Maynard Plastics for Plastinet netting technology (now marketed as Naltex) |
| 1986 | AET Specialty Nets and Nonwovens Division formed in Middletown, DE, as a Hercules spinoff, with Delnet® apertured film and Stratex® laminate technologies |
| 1985 | IR starts making Core Tubes |
| 1984 | Delnet apertured film lines moved to Middletown, DE facility |
| 1981 | Stratex lamination lines moved to Middletown, DE facility |
| 1978 | Stratex lamination lines installed at Hercules Research Center in Wilmington, DE |
| 1975 | Hercules begins supplying Delnet apertured films to Filtration Industry as support screens and spiral wound element components |
| 1970 | Original Delnet apertured film lines installed by Hercules Company in Marshallton, DE |
| 1970's | Nalle Plastics focuses on the filtration industry, supplying nets for reverse osmosis filtration |
| 1970's | Nalle Plastics evolves from plastics components manufacturer into an engineering and R&D company, focused on automotive product design |
| 1970's | IR separates into Tube Shop and Machine Shop at two locations |
| 1965 | Industrial Research Machined Products (IR) founded by John Bowden |
| 1960's | George Nalle, Jr. invents and patents Naltex netting technology |
| 1946 | Nalle Plastics founded in Austin, TX by George Nalle, Jr. |
